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Table 10 Instances of ‘potential’ PIs: none of which is a breach as none occurred in isolation

From: Development and evaluation of a de-identification procedure for a case register sourced from mental health electronic records

  Number of instances Reasons
Number of ‘potential’ PI instances in the notes (within 500 notes) 89 70.9% due to misspellings; 20.9% due to PIs being un-entered in source
Type of Potential PIs   
Patient Nickname 20 Un-entered PI
Patient First Name 18 Un-entered PI or misspellings
Old Address Post Code 14 Un-entered PI or misspellings
Patient Date of Birth 13 Un-entered PI or misspellings
Patient Contact Number 2 Un-entered PI
Patient Last Name 10 Un-entered PI or misspellings
Old Address Line 1 5 Un-entered PI or misspellings
Patient Middle Name 4 Un-entered PI
Old Address Line 2 2 Un-entered PI or misspellings
Old Address Line 3 1 Un-entered PI or misspellings